IFD 440, audio outputs

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    Initially , on my IFD 440, the shop wired pins 37,38 from p1001 to my audio panel. I got nothing. After some research , it was rewired using pins 52, 53.   The callouts / audio are working now. What are pins 37, 38 used for? The Installation manual shows as audio hi and audio low.  I currently do not have ads-b /in hard wired to IFD 440, but that’s about to change. Once ads-b /in is to the IFD 440, will I get audio traffic alert outputs thru pins 52, and 53?

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Buzz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 12 Apr 2025 Location: GA Status: Offline Points: 6	Post Options Post Reply Quote Buzz Report Post Thanks(0) Quote Reply Topic: IFD 440, audio outputs Posted: 30 Jun 2025 at 11:37pm
	Initially , on my IFD 440, the shop wired pins 37,38 from p1001 to my audio panel. I got nothing. After some research , it was rewired using pins 52, 53. The callouts / audio are working now. What are pins 37, 38 used for? The Installation manual shows as audio hi and audio low. I currently do not have ads-b /in hard wired to IFD 440, but that’s about to change. Once ads-b /in is to the IFD 440, will I get audio traffic alert outputs thru pins 52, and 53?

PA23 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 12 Oct 2019 Location: MMU Status: Offline Points: 342	Post Options Post Reply Quote PA23 Report Post Thanks(0) Quote Reply Posted: 52 minutes ago at 10:34am
	from the installation manual